digraph {
	graph [overlap=false];
	subgraph main {
		node [fontname="sans-serif",
			shape=box,
			style="rounded,filled"
		];
		tb	[label=<Tinyboard<BR/><B><FONT POINT-SIZE="9">(@savetheinternet)</FONT></B><BR/>2010–2014>];
		ponychan	[label=<ponychan.net<BR/><B><FONT POINT-SIZE="9">(???)</FONT></B><BR/>2012–2015 (as MLPchan)<BR/>2015–>];
		tb -> ponychan;
		fourchon	[label=<proprietary 4chon.net fork<BR/><B><FONT POINT-SIZE="9">(@savetheinternet)</FONT></B><BR/>2010–2014>];
		tb -> fourchon;
		vichan	[color=gold,
			label=<vichan<BR/><B><FONT POINT-SIZE="9">(@czaks)</FONT></B><BR/>2012–>];
		tb -> vichan;
		vichannet	[label=<Production vichan.net software<BR/><B><FONT POINT-SIZE="9">(Polish-language imageboard)<BR/>(@czaks)</FONT></B><BR/>2012–>];
		tb -> vichannet;
		fourchon -> tb;
		vichan -> tb;
		vichan -> vichannet;
		leftypol	[label=<leftypol.org<BR/><B>(@discomrade <I>et al.</I>)</B><BR/>≈2016–>];
		vichan -> leftypol;
		inf	[label=<infinity<BR/><B><FONT POINT-SIZE="9">(@copypaste /<BR/>★コピペ)</FONT></B><BR/>2013–2017>];
		vichan -> inf;
		infco	[label=<Production 8chan.co fork<BR/><B><FONT POINT-SIZE="9">(@copypaste /<BR/>★コピペ)</FONT></B><BR/>2013–2016>];
		vichan -> infco;
		lc	[label=<lainchan<BR/>2016–>];
		vichan -> lc;
		npf	[label=<NPFchan<BR/>2017–2019>];
		vichan -> npf;
		kuz	[label=<KolymaNET<BR/>d/b/a soyjak.party<BR/>~2020–>];
		vichan -> kuz;
		vichannet -> vichan:nw;
		leftypol -> vichan	[style=dashed];
		inf -> tb	[style=dotted];
		inf -> vichan;
		infpl	[label=<Production 8ch.pl fork<BR/><B><FONT POINT-SIZE="9">(@czaks)</FONT></B><BR/>2014–2016>];
		inf -> infpl;
		oib	[label=<OpenIB<BR/>~2017–2019>];
		inf -> oib;
		infco -> vichan	[rank=min];
		infco -> inf;
		infpl -> vichan	[style=dotted];
		infpl -> inf;
		e8ch	[label=<Proprietary 8chan software<BR/>~2017–2019>];
		oib -> e8ch;
		e8kun	[label=<Proprietary 8kun software<BR/>~2019–>];
		e8ch -> e8kun;
		kuz -> vichan;
	}
	subgraph B {
		subgraph title {
			TITLE	[fontname="sans-serif",
				fontsize=16,
				label=<<FONT POINT-SIZE="24"><FONT FACE="monospace">vichan</FONT>&nbsp;Timeline</FONT><BR/>…as of 20230329>,
				shape=box,
				width=10];
		}
		subgraph sig {
			graph [rank=sink];
			SIG	[label=<<FONT FACE="serif">by kopipe</FONT>>,
				labelloc=b,
				shape=none];
		}
		tb;
		vichan;
		tb -> vichan	[arrowhead=0,
			penwidth=0,
			weight=max];
		infco;
		vichan -> infco	[arrowhead=0,
			penwidth=0,
			weight=max];
		kuz;
		infco -> kuz	[arrowhead=0,
			penwidth=0,
			weight=max];
		kuz -> SIG	[arrowhead=0,
			penwidth=0,
			weight=max];
		TITLE -> tb	[arrowhead=0,
			penwidth=0,
			weight=max];
		TITLE -> SIG	[arrowhead=0,
			penwidth=0];
	}
}